Phenomenological Intensity Parameters Research Articles

Effect of mixed alkali ions on the structural and spectroscopic properties of Nd3+ doped silicate glasses

In the present work the effect of alkali ions (Li, Na, K) and the combination of them on structural and spectroscopic properties of Nd3+ doped silicate glasses were systematically investigated. Results from infrared and Raman spectroscopy, as well as density and refractive index, were used to investigate the effect on the structural properties of the silicate glasses. Absorption and emission spectra of the glass samples were measured in the UV-VIS and NIR ranges. Relatively large, stimulated emission cross-section at 1.06 μm was obtained for samples containing a combination of alkali ions, especially with potassium. Moreover, the splitting induced by the Stark effect on the hypersensitive transition of Nd3+,4I9/2 → 4G5/2, 2G7/2 was larger for the samples containing potassium, probably due to its larger ionic size. Judd-Ofelt theory was applied to evaluate the phenomenological intensity parameters Ω2, Ω4, Ω6, transition probabilities, radiative lifetimes and branching ratios related to Nd3+ ions, calculated from optical absorption and luminescence spectra and the results were compared to the values obtained for different Nd-doped glasses reported in the literature.

Influence of Alkali Metal Ions on the Structural and Spectroscopic Properties of Sm3+-Doped Silicate Glasses

In the present work, the influence of alkali ions (Li, Na, K) on the structural and spectroscopic properties of silica glasses doped with Sm3+ was investigated. Infrared and Raman spectroscopy techniques were used to investigate the structural properties of the alkali silicate glasses. The optical absorption showed bands characteristic of Sm3+ ions in alkali silicate glasses, and this was investigated. The Judd–Ofelt theory was applied to evaluate the phenomenological intensity parameters (Ω2, Ω4, and Ω6) of the optical absorption measurements. The multi-channel visible and near infrared emission transitions originating from the 4G5/2-emitting state of the Sm3+ in alkali silicate glasses with a maximum phonon energy of ~1050 cm−1 were investigated. From the evaluated Judd–Ofelt parameters, radiative parameters such as spontaneous emission probabilities, radiative lifetimes, branching ratios, and stimulated emission cross-sections were calculated. The recorded luminescence spectra regions revealed intense green, orange, red, and near-infrared emission bands, providing new traces for developing tunable laser and optoelectronic devices.

Fluorescence Study of Pr3+ Doped CdS Nanoparticles and its Applications in Sensors and Detectors.

Fluorescence spectra of Pr3+ doped CdS nanoparticles, synthesized by chemical precipitation method, have been recorded at room temperature. The synthesized particles are nearly spherical shaped and the grain size is decreased with the increase in Pr3+ concentration. The chemical identity of the nanoparticles was confirmed by EDAX spectrum, the absorption peaks was confirmed by FTIR spectrum and then the recorded values were compared with the CIE diagram. The oscillator strengths of the 4f ↔ 4I transitions are parameterized in terms of three phenomenological Judd-Ofelt intensity parameters Ωλ (λ = 2, 4 and 6). Using the fluorescence data and these Ωλ parameters, theoretical and experimental study of various radiative properties viz., spontaneous emission probability (A), radiative life time , fluorescence branching ratio and stimulated emission cross-section were evaluated. The values of these parameters indicate that 3P0→ 3H4 transition can be considered to be good laser transition in the visible colour region. Also, excitation with 493 nm, leads to similar blue regions. The synthesized Pr3+ doped CdS nanomaterials could be useful for sensing and detecting devices, particularly for temperature sensing measurement and bio-sensing detection.

Fluorescence and Physical Properties of Tm3+/Ho3+ Co-Doped Tellurite Glasses for Mid-Infrared Laser

In this work, a series of Tm3+/Ho3+ co-doped tellurite glasses were successfully prepared by the melt-quenching method. The spectroscopic properties around 2 μm of Tm3+/Ho3+ co-doped tellurite glasses were studied under 808 nm laser excitation. Based on the Judd-Ofelt theory, the phenomenological intensity parameters Ω t (t = 2, 4, 6) of the Tm3+/Ho3+ co-doped tellurite glasses were calculated. In addition, the emission cross-section and the gain coefficient of Ho3+ were calculated, and the maximum values are 0.76 × 10−20 cm−1 and 1.38 cm−1, respectively. These results portend that the Tm3+/Ho3+ co-doped tellurite glass has excellent spectroscopic properties and attractive laser performance in mid-infrared waveband.

Formation of Au@Ag Bimetallic Nanoparticles via Ion Implantation and Its Effects on Boosting the Near-Infrared Emission of Er3+ Ions in Germanate Glass for Applications in Optical Amplifiers

In this work, germanate glasses of composition 59GeO2-41PbO in mol% doped with Er3+ ions were synthesized using the melt-quenching route. Au and Ag nanoparticles and Au@Ag bimetallic nanoparticles were formed on the surface of the germanate glasses by ion implantation followed by thermal treatments. X-ray diffraction patterns confirmed the amorphous structure of the implanted glasses. Molecular dynamics was used to simulate the GeO2–PbO glass structure. Surface plasmon resonance bands centered at 486, 537, and 574 nm, obtained through ultraviolet–visible absorption spectra, supported the formation of Ag, Au, and Au@Ag nanoparticles, respectively. Transmission electron microscopy (TEM) revealed the presence of spherical Au and Ag nanoparticles as well as the presence of nonspherical Au@Ag bimetallic nanoalloys. Refractive index n and extinction coefficient k were measured by ellipsometry. Judd–Ofelt theory was applied to evaluate the phenomenological intensity parameters Ωλ(λ = 2,4,6) , radiative parameters, and stimulated emission cross-sections for glasses doped with Er3+ and implanted with Au @Ag bimetallic nanoalloys. Efficient boosting of the near-infrared emission for the 4I13/2 → 4I15/2 transition was observed in the glass doped with Er3+ ions due to the presence of Au@Ag bimetallic nanoalloys. The possible cause of this improvement in luminescent intensity was attributed to the strong local field effect due to the efficient synergy between Au@Ag bimetallic nanoalloys and the Er3+ ions. The results obtained in this work indicate that the vitreous system GeO2–PbO glass doped with Er3+ ions and with the incorporation of Au@Ag bimetallic nanoalloys via ionic implantation exhibit excellent spectroscopic properties compared to other vitreous host glasses doped with the Er3+, indicating its potential applications in optical amplifiers.

Concentration quenching effect on luminescent properties of Sm3+ ions doped ZnBiNaPSr glasses for photonic device applications

Concentration variation of trivalent samarium (Sm3+) ions doped ZnBiNaPSr oxyfluoride glasses have been prepared by using the standard melt quenching technique. The spectroscopic properties were investigated with diffraction, surface morphology, structural, optical and luminescence studies. The glassy nature of the samples was observed by the XRD pattern. The morphological images with feasible irregularities and elemental mapping were observed by SEM with EDS. The various structural PO, P–O–P, O–P–O and P–O–H phosphate bonds along with OH− groups were obtained by FTIR spectroscopy. The obtained absorption spectra in the UV–Vis–NIR region (300–1700 nm) consist of a series of bands assigned to respective transitions. The tauc's plots were drawn to estimate the band gap energies for the direct and indirect allowed transitions and measured the Urbach energy. The oscillatory strengths (fcal and fexp) and bonding parameters (δ) of each f-f transition have been evaluated. The phenomenological intensity parameters (Ω2, Ω4 and Ω6) were estimated from the J-O theory. The radiative parameters such as AT, τ, βR, Δλeff and σ were evaluated from the emission transitions. The luminescence intensity quenching was observed for the higher concentrations (1.5 & 2.0 mol%) of samarium ion. The high intense transition 4G5/2 → 6H7/2 (598 nm) was observed to be most suitable for the intense red-orange emission. The color coordinates, CCT, color purity of the ZnBiNaPSr oxyfluoride glasses were obtained from the CIE 1931 diagram.

Spectral investigations of Nd3+:Ba(PO3)2+La2O3 glasses for infrared laser gain media applications

The investigation of the concentration dependent spectroscopic characteristics of Nd3+ ion in Ba(PO3)2+La2O3 (PBaLa) glasses have been carried out. Based on prominent Judd-Ofelt (JO) formalism, the three JO phenomenological quantitative intensity parameters (Ωλ = 2,4,6) were determined by using absorption levels. The very high Ω6 intensity parameter value reveals greater degree of structural distortion of the Nd3+ sites in PBaLa glass. From Ωλ, required radiative characteristics such as radiative emission probability, lifetime (τr), branching ratio (βr) and emission cross-section (σ(λ)) for excited fluorescent levels have been predicted to assess the potentiality of the glasses. The de-excitation (radiative emission) spectra observed for these glasses yield three prominent levels of 4F3/2 → 4I13/2,11/2,9/2 and their related effective bandwidths and de-excitation cross-sections have been quantified. The lifetimes of the 4F3/2 fluorescent state in Nd3+:PBLa for different concentrations (0.1–2.0 mol %) of Nd3+ ion have been determined by exciting with diode laser (808 nm). The quenching of lifetime could be attributed to the enhanced energy transfer phenomenon via cross-relaxation between pairs of the Nd3+ ions. The crucial spectroscopic characteristics that include Ωλ parameters, radiative properties, effective bandwidths, stimulated emission cross-section, gain bandwidth, figure of merit and optical gain of 4F3/2 → 4I11/2 transitions of PBaLaNd1.0 glass are determined which are also compared with other reported 85 Nd3+: glasses which include 63 Nd3+:phosphate glasses. These systematic analysis and critical comparison with similar results reveal that Nd3+:PBaLa glasses with a wide bandwidth of fluorescence can also be useful for optical amplifiers or laser gain media applications.

Optical and spectroscopic behavior of Eu3+ doped heavy metal phosphate glasses

Europium (Eu3+)-doped heavy metal phosphate glass systems have been synthesized by melt-quench technique. Optical as well as spectroscopic characteristics are analyzed in detail. X-ray diffraction (XRD) pattern of synthesized samples confirms their glassy nature. Optical band-gap (Eg) for the synthesized samples has been calculated using different methods. Refractive index and other parameters such as dielectric constant, molar refraction, reflection losses, and polarizability have also been determined for prepared glass samples. Photoluminescence properties are examined from the excitation as well as emission spectra and results revealed prominent emissions in red region. The optical band gap for the prepared samples has been evaluated using three different methods viz. Tauc's method, absorption spectrum fitting (ASF) method and differential absorption spectrum fitting (DASF) method. Similar results have been obtained by all the three methods. Judd-Ofelt (J-O) theory has been employed to emission bands of Eu3+ ions for determination of phenomenological intensity parameters i.e. Ω2,Ω4 and Ω6, radiative rate, branching ratio and radiative lifetime. J-O analysis revealed that the large value of Ω2 parameter indicated high covalency between metal-ligand bonds along with the distortion among symmetric sites of Eu3+. Branching ratio (βR) is greater than 0.5 for 5D0→7F2 (transition) indicating their prospective for usefulness in laser-based applications. High branching ratio values and color purity suggests the potential use of glass samples for red laser applications.

Growth and spectroscopic properties of Tm3+-doped La2CaB10O19 crystal

Tm3+-doped La2CaB10O19 (Tm3+: LCB) crystal with dimensions of 40 × 16 × 14 mm3 has been grown by the top-seeded solution growth (TSSG) method. At room temperature, the absorption spectrum in the wavelength range of 190–2000 nm and emission spectrum under the excitation of 466 nm were measured by using (110) oriented crystal wafers. According to the Judd−Ofelt theory, the fundamental spectral parameters were calculated, including phenomenological intensity parameters Ωt(t = 2, 4, 6), transition probability A, emission cross sections σem, fluorescence branch ratio βc, and radioactive lifetime τrad. Tm3+: LCB crystal may be a potential near infrared laser material under the excitation of 466 nm which is closed to the wavelength of GaN laser diode.

Optical spectroscopy study of Eu-doped ions in BaAl2O4 phosphors

Computational and experimental methodology is employed to study optical properties in Eu-doped BaAl2O4 phosphors. The symmetry and detailed geometry of the Eu-dopant site, predicted by atomistic simulation, are used to calculate the crystal field parameters and the intensity parameters (Ω2 and Ω4) based on a Judd-Ofelt approach to the Eu3+ ion. The phenomenological intensity parameters are obtained from the emission spectra of the Eu-doped BaAl2O4 and compared to the theoretical results. Experimental and calculated values for the 7F1 energy sub-levels of the Eu3+ and maximum Stark splittings (ΔEmax) are also obtained.

NIR and visible luminescence of Er3 +/Yb3+ co-doped fluorophosphate glasses with small additives of phosphates

A series of new fluorophosphate glasses co-doped with Er3+/Yb3+ions with composition 5 Ba(PO3)2–(90-x)(AlF3 –CaF2 –MgF2 –BaF2–SrF2)–5YbF3-xErF3, where x = 0, 0.1, 0.5, 1.0, 2.0, 3.0, 5.0 (mol.%) were developed. Impact of the Er3+ ions concentration on the luminescent properties was studied. Using Judd-Ofelt theory phenomenological intensity parameters Ωt (t = 2; 4; 6) were obtained. The stimulated emission cross-sections of 4I13/2→4I15/2 transitions were determined by the Fuchtbauer-Landenburg equation (FL) and the modified reciprocity method (MR). The upconversion spectra were measured as a function of the power density in the range 1.8–12.4 kW/cm2 and temperature in the range from 293 K to 693 K. It was found that the high intensity of UC luminescence of Er3+ ions and impurity Tm3+ ions occurs by the mechanism cooperative energy transfer (CET), which means the formation of excited clusters (dimers) of ytterbium. The sensitivity and temperature of the maximum sensitivity were evaluated by the fluorescence intensity ratio method from the measured up conversion spectra. The maximum value of absolute thermal sensitivity Smax of 40 × 10−4 K−1 at 693 K was obtained for the sample doped with 0.5 mol % of ErF3.

Concentration Effect of Germanium Dioxide on the Spectroscopic Properties and Laser Performance of Er3+/Yb3+ Co-Doped Phosphate Glasses

The Er3+/Yb3+ co-doped phosphate glasses with GeO2 modification (PGs) were successfully prepared by melt-quenching method. Their physical parameters were investigated such as density, refractive index, glass transition temperature and coefficients of thermal expansion. The phenomenological intensity parameters Ω t (t = 2, 4, 6) of the PGs have been calculated by the Judd-Ofelt theory. The relationship between optical properties and GeO2 concentration was discussed in this work. The laser experiment using PG10 (GeO2 10 mol% modified phosphate glass with Er3+/Yb3+ ratio of 0.5/2) was carried out. The research results indicate that the introduction of GeO2 results in a large absorption and emission cross-section, a long lifetime, a high quantum efficiency, and an excellent laser performance. All these advantages could also portend an optimized method for improving spectroscopic properties in other constituent Er3+/Yb3+ co-doped phosphate glass by introducing GeO2.

Spectral characteristics and optical temperature sensing properties of Er3+/Yb3+-co-doped phosphate glasses with GeO2 modification.

Er3+/Yb3+-co-doped phosphate glasses with GeO2 modification (PLAZGs) were successfully prepared by the melt-quenching method. The phenomenological intensity parameters Ωt (t=2, 4, 6) of the PLAZGs have been calculated by the Judd-Ofelt theory. Based on the phenomenological intensity parameters, the spectroscopic parameters of Er3+ and fluorescence intensity ratio (FIR) of green upconversion emissions were estimated. It was observed that, under 980 nm excitation, all samples exhibit green and red upconversion emissions of Er3+. The 10 mol% GeO2 modified phosphate glass has the strongest upconversion emission. Additionally, the fluorescence decays of the 2F5/2→2F7/2 transition of Yb3+ ions were measured to evaluate the energy transfer efficiency from Yb3+ to Er3+ ions. Finally, the optical temperature sensing properties based on upconversion emissions were investigated at temperatures from 150 K to 600 K. The maximum absolute temperature sensitivity S value of 6.0×10-3K-1 at 400 K is obtained, which indicates that the glass is promising for temperature sensing application based on the FIR technology.

Effect of the phosphate content on the spectroscopic and lasing properties of Er3+/Yb3+-doped fluorophosphate glasses

The influence of phosphate content on the formation and luminescent properties of Er3+/Yb3+-doped fluorophosphate glass has been studied. Using the Judd-Ofelt theory the phenomenological intensity parameters Ωt (t = 2; 4; 6) were obtained. The change of Judd-Ofelt parameters indicates minor differences in Er3+environment with increase in the phosphates content up to 10 mol.%. It was shown that in the studied fluorophosphates glasses erbium ions remain in the fluoride environment. The increase in phosphate content leads to lifetime change of erbium laser level from 9.4 ms to 7.8 ms. Using the Judd-Ofelt intensity parameters Ωt the stimulated emission cross-section of the 4I13/2→4I15/2 transition has been calculated. The gain shape of the glasses with lower (2–10 mol. %) phosphate content has been found to be smoother than for phosphate glasses with 20 mol.% Ba(PO3)2, which makes former very attractive gain material.

Development of ZnO–BaO–B2O3–TeO2 glass doped with Sm3+ for orange emitting material

Zinc barium borotellurite glass samples were synthesized with the chemical composition of 10ZnO–30BaO–30B2O3-(30-x)TeO2-xSm2O3 (where 0.05 ≤ x ≤ 1.50 in mol%). Several techniques for XRD, FTIR, absorption, luminescence and decay time measurements were used to investigate the structural and spectroscopic properties. It was found that the XRD patterns revealed amorphous nature of the glass samples. The structural modification of (TeO4) trigonal bipyramid structural units was observed using FTIR spectroscopy. The UV–VIS–NIR absorption spectra displayed seven absorption peaks corresponding to the energy transitions from the ground level 6H5/2 to 6F11/2 (947 nm), 6F9/2 (1085 nm), 6F7/2(1238 nm), 6F5/2 (1385 nm), 6F3/2 (1492 nm), 6H15/2 (1550 nm), and 6F1/2 (1589 nm) excited levels of Sm3+ ion. For the emission spectra, four peaks revealed the transitions 4G5/2 → 6H5/2 (563 nm), 6H7/2 (601 nm), 6H9/2 (644 nm) and 6H11/2 (705 nm). The phenomenological intensity parameters Ωλ (λ = 2, 4, 6) according to Judd–Ofelt theory were calculated. The J-O parameters have been used to forecast several radiative properties such as transition probability (AR), branching ratio (βR) and stimulated emission-cross-sections (σp) in 4G5/2 excitation level of samarium ion. The decay patterns of the 4G5/2 level were fitted using non exponential as well as Inokuti–Hirayama (IH) model. The luminescence spectra of Sm3+ ion of the glasses was analyzed with The CIE chromaticity color coordinates. According to the CIE coordinates, it was located in the boundary of orange light in the CIE diagram. All of the results indicated that these glass compositions could be used for preparing a material which will be a potential candidate for laser applications.

Improvement of spectroscopic properties and luminescence of Er3+ions in phospho-tellurite glass ceramics by formation of ErPO4 nanocrystals

Er3+ doped phospho-tellurite glass was prepared by melt-quenching method. A limited partial crystallization of the glass samples was controlled by thermal annealing process in order to obtain a transparent glass-ceramic. The X-ray diffraction (XRD) patterns indicate the precipitation of nanocrystalline phases after heat treatment. A particular interest is devoted to the formation of ErPO4 nanoparticles (NPs) dispersed in the glassy host. The optical band gap (Eg) has been found to decrease from 3.37 to 2.75eV as the sample changes from glass to glass-ceramic. The Judd–Ofelt (JO) phenomenological intensity parameters (Ω2, Ω4, Ω6) have been estimated by means of the absorption spectrum. Radiative parameters of Er3+ ions have been predictedusing JO intensity parameters. Significant improvements of both the near infrared emission relative to the 4I13/2 → 4I15/2 transition and the corresponding luminescence lifetime were obtained after heat treatment. We show that an efficient excitation transfer occurs from the formed ErPO4 NPs to Er3+ ions. The Mc-Cumber method is used to calculate the absorption cross-section σa, the emission cross-section σe and the gain cross-section G(λ) relative to the 4I13/2 → 4I15/2 transition.Compared with other glass hosts, the results indicate that erbium doped phospho-tellurite glass-ceramic has good prospect as a gain medium applied for 1.53 μm band broad and high-gain erbium-doped fiber amplifiers (EDFA).

Synthesis, characterization and Judd-Ofelt analysis of Sm3+-doped anhydrous Yttrium trimesate MOFs and their Y2O3:Sm3+ low temperature calcination products

Abstract The luminescence quenching in RE3+-containing materials (RE: rare earth) has a close dependence with the water content on the first coordination sphere around the activator ions. The hydration content of [RE(TMA)] systems (TMA = 1,3,5-benzenetricarboxylic acid) is dependent on the RE3+ ionic radius, leading to elements smaller than Gd3+ to form anhydrous matrixes. It is noteworthy that [Sm(TMA)·6(H2O)] is hexahydrate, while [Y(TMA)] is anhydrous. In this work, we report the synthesis, characterization and the luminescent properties of [Y(TMA)] anhydrous metal organic frameworks (MOFs) serving as hosts for Sm3+ ions. The materials are synthesized by a quick and easy coprecipitation procedure in aqueous solution. Under calcination at mild conditions (starting at 500 °C, benzenecarboxylate method), the precursor complexes are converted into Y2O3:Sm3+ with strong Sm3+ photoluminescence. The compounds were characterized by different techniques (elemental analyses, infrared spectroscopy, thermogravimetry, powder X ray diffraction and photoluminescence). The phenomenological intensity parameters (Ω2,4,6) of Sm3+ were determined by a least squares procedure based on the Judd-Ofelt theory.

A novel Nd3+‐doped MgO‐Al2O3‐SiO2‐based transparent glass‐ceramics: Toward excellent fluorescence properties

AbstractGenerally, glass‐ceramics have superior properties compared to their parent glasses. Here, we prepared a novel Nd3+‐doped MgO‐Al2O3‐SiO2‐based transparent glass‐ceramics with excellent fluorescence properties. The effects of Nd2O3 content on the structure and properties of glass‐ceramics were studied, aiming to provide a key guidance for preparing this transparent glass‐ceramics. The results revealed that the glass stability increased originally and then decreased with increasing Nd2O3 content, so did the variation of wavenumbers in infrared spectra. And these glass‐ceramics are mainly composed of cordierite with residual glassy phase. The three phenomenological intensity parameters (Ω2,4,6) and radiative properties were estimated by Judd‐Ofelt theory, and the values of Ω2 first decreased and then increased with increasing Nd2O3 content. Three main emission peaks ascribed to the transitions from 4F3/2 to 4I9/2, 4I11/2, 4I13/2 at 898, 1057, 1330 nm were observed, respectively. The branching ratios for 4F3/2→4I11/2 transition increased as the Nd2O3 content raised, and the fluorescence lifetimes of the 4F3/2 level were found to increase first and then decrease with Nd2O3 content (from 181 to 726 μs). The excellent fluorescence properties indicate that this novel glass‐ceramics can be used as a potential solid‐state optical functional material for 1.06 μm laser emission.

Nd3+ doped new oxyfluoro tellurite glasses and glass ceramics containing NaYF4 nano crystals − 1.06 µm emission analysis

Oxyfluoro tellurite glasses with chemical composition TeO2-ZnO-YF3-NaF (TZYN), doped with Nd3+ in different concentrations were prepared by the melt-quenching technique. Judd–Ofelt analyses of Nd3+ ions in the precursor glasses were performed to evaluate the phenomenological intensity parameters Ω2,4,6. From the NIR emission spectra, characteristic parameters such as effective band with (∆λeff) and stimulated emission cross section (σP) were calculated for the three observed transitions, 4F3/2 → 4I9/2,4I11/2 and 4I13/2 and compared to other reported glasses. Based on the luminescence decay times of 4F3/2 excited state, the quantum efficiency was evaluated and it is highest for a 0.2 mol% Nd3+ doped glass (G-Nd2). Glass ceramics were obtained by controlled heat treatment of the glasses at 390 °C for 5 h (as determined by DSC), which is greater than the glass transition temperature Tg. Moreover, DSC results revealed that precipitation of the NdYF4 nanocrystalline phase (TC1) decreased with increasing Nd3+ concentration. X-ray diffraction (XRD) and field emission scanning electron microscopy (FE-SEM) investigations reveal that spherical NaYF4 nano-crystals are distributed homogeneously across the glassy matrix. The emission intensity of the 4F3/2→4I11/2 transition at 1.60 µm was enhanced in glass ceramics as compared to glasses because of the occupancy of the Nd3+ in NaYF4 nanocrystlline phase. The experimental lifetime value of 4F3/2 also enhanced from 124 to 187 µs from G-Nd2 glass to GC-Nd2 glass ceramic and decreased with increasing Nd3+ concentration.

Spectral properties of Nd3+ ions in the new fluoride glasses with small additives of the phosphates

A series of the new fluoride glasses with small additives of the phosphates doped with different of Nd3+ content is developed. The dopant concentration dependence of optical absorption and emission properties is reported here for the concentration range of 2.5×1020 to 1.0×1021 (ions/cm3). Using the Judd-Ofelt theory the phenomenological intensity parameters Ωt (t = 2; 4; 6) were obtained for all glasses studied. Fluorescence lifetime, quantum efficiency and nonlinear refractive index n2. were obtained. The peak stimulated emission cross sections of the transitions at 899 nm, 1053 nm and 1320 nm were calculated according to J-O theory. The stimulated emission cross-sections of 4F3/2→4I9/2,4F3/2→4I11/2 and 4F3/2→4I13/2 transitions were determined by the Fuchtbauer-Landenburg equation (FL) and the modified reciprocity method (MR) for all Nd3+concentrations. The analysis of the luminescence quenching depending on the concentration of the activator was carried out. It was concluded that present fluoride glass with small additives of phosphates is a promising material for laser applications.